How to Use Context Clues to Define Words

This instructional video from the Excelsior University Online Writing Lab treats unfamiliar vocabulary as a reading problem that can often be solved before a dictionary ever enters the picture. Its main claim is practical: readers can often infer a word's likely meaning from signals in the same sentence or a nearby one, and those signals fall into a small number of recognizable types.

The source organizes those signals into six clue families. A definition clue states the meaning directly, often with phrases like "is defined as" or punctuation that sets off an explanation. A synonym clue places a near-equivalent beside the unfamiliar word. A contrast clue gives the opposite, using connectors like "but," "however," or "whereas." An example clue shows the word through instances introduced by phrases such as "for example" or "such as." An experience clue leans on ordinary background knowledge, as with the example of misleading TV ads suggesting what "disingenuous" means. An adjacent clue works across sentences, where a later sentence clarifies the earlier unfamiliar term.

What makes the video useful is that it frames vocabulary growth as active inference rather than passive lookup. The reader is not meant to guess wildly, but to build a working definition from textual evidence and then verify it afterward with a dictionary. In that sense, context clues operate like a small local form of inferencing: the text does not hand you the answer, but it does constrain what the answer can plausibly be.

The most memorable part of the source is its typology. Instead of saying "use context," which is too vague to be actionable, it breaks context into specific patterns the reader can scan for while moving through a text.